<template>
  <div class="outer">
    <!-- 三级分类导航 -->
    <TypeNav />
    <div class="main">
      <div class="py-container">
        <!--面包屑导航-->
        <div class="bread">
          <ul class="fl sui-breadcrumb">
            <li>
              <span href="#">全部结果</span>
            </li>
          </ul>
          <ul class="fl sui-tag">
            <!-- 分类名面包屑 -->
            <li class="with-x" v-show="searchParams.categoryName">
              {{ searchParams.categoryName }}
              <i @click="removeCategoryName">×</i>
            </li>
            <!-- 关键词面包屑 -->
            <li class="with-x" v-show="searchParams.keyword">
              {{ searchParams.keyword }}
              <i @click="removeKeyword">×</i>
            </li>
            <!-- 面包屑品牌 -->
            <li class="with-x" v-show="searchParams.trademark">
              {{ fmtTrademark }}
              <i @click="removeTrademark">×</i>
            </li>
            <!-- 面包屑_属性 -->
            <li
              class="with-x"
              v-for="(prop, index) in searchParams.props"
              :key="index"
            >
              <!-- 下面这行是用filters（过滤器）加工prop -->
              {{ prop | fmtProp }}
              <i @click="removeProp(index)">×</i>
            </li>
          </ul>
        </div>
        <!-- 商品为空的时候 -->
        <div class="empty" v-show="!total">
          <img
            src="https://static.360buyimg.com/devfe/error-new/1.0.0/css/i/error_06.png"
          />
          <h2 v-show="!total">
            &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;抱歉，搜索结果为空!!!
          </h2>
        </div>
        <!-- 搜索器 -->
        <SearchSelector
          @get-trademark="saveTrademark"
          @get-prop="saveProp"
          v-show="total"
        />

        <!--商品展示区-->
        <div class="details clearfix" v-show="total">
          <!-- 列表操作区 -->
          <div class="sui-navbar">
            <div class="navbar-inner filter">
              <ul class="sui-nav">
                <li @click="changeOrder(1)" :class="{ active: !isPrice }">
                  <a>
                    综合
                    <span
                      v-show="!isPrice"
                      class="iconfont"
                      :class="iconName"
                    ></span>
                  </a>
                </li>
                <li @click="changeOrder(2)" :class="{ active: isPrice }">
                  <a>
                    价格
                    <span
                      v-show="isPrice"
                      class="iconfont"
                      :class="iconName"
                    ></span>
                  </a>
                </li>
              </ul>
            </div>
          </div>
          <!-- 商品列表 -->
          <div class="goods-list">
            <ul class="yui3-g">
              <li class="yui3-u-1-5" v-for="good in goodsList" :key="good.id">
                <div class="list-wrap">
                  <div class="p-img">
                    <router-link :to="`/detail/${good.id}`">
                      <img :src="good.defaultImg" />
                    </router-link>
                  </div>
                  <div class="price">
                    <strong>
                      <em>¥</em>
                      <i>{{ good.price }}</i>
                    </strong>
                  </div>
                  <div class="attr">
                    <router-link
                      :to="`/detail/${good.id}`"
                      v-html="good.title"
                    />
                  </div>
                  <!-- <div class="commit">
                    <i class="command">已有<span>2000</span>人评价</i>
                  </div> -->
                  <!-- <div class="operate">
                    <a
                      href="success-cart.html"
                      target="_blank"
                      class="sui-btn btn-bordered btn-danger"
                      >加入购物车</a
                    >
                    <a href="javascript:void(0);" class="sui-btn btn-bordered"
                      >收藏</a
                    >
                  </div> -->
                </div>
              </li>
            </ul>
          </div>
          <!-- 分页器 -->
          <Pagination
            :total="total"
            :pageNo="searchParams.pageNo"
            :pageSize="searchParams.pageSize"
            :continues="5"
            :getPageNo="getPageNo"
          />
        </div>
      </div>
    </div>
  </div>
</template>

<script>
import SearchSelector from "./SearchSelector";
import { mapGetters } from "vuex";

export default {
  name: "Search",
  data() {
    return {
      searchParams: {
        category1Id: "", //一级分类id
        category2Id: "", //二级分类id
        category3Id: "", //三级分类id
        categoryName: "", //分类名
        keyword: "", //关键词
        props: [], //商品属性
        trademark: "", //品牌
        order: "1:desc", //排序
        pageNo: 1, //当前页码
        pageSize: 5, //每页展示多少条
      },
    };
  },
  components: { SearchSelector },
  computed: {
    ...mapGetters(["goodsList", "total"]),
    isPrice() {
      return this.searchParams.order.split(":")[0] === "2";
    },
    iconName() {
      return this.searchParams.order.split(":")[1] === "asc"
        ? "icon-up"
        : "icon-down";
    },
    //品牌的名字
    fmtTrademark() {
      return this.searchParams.trademark
        ? this.searchParams.trademark.split(":")[1]
        : undefined;
    },
  },
  methods: {
    //搜索
    search(needReset) {
      if (needReset) {
        //如果需要重置就把当前页设置为1,但是需要传参(布尔值)
        //true重置页码
        this.searchParams.pageNo = 1;
      }
      //携带参数分发getSearchInfo
      this.$store.dispatch("getSearchInfo", this.searchParams);
    },
    //清空分类名
    removeCategoryName() {
      //让分类名面包屑消失
      //改变浏览器地址
      //不带分类名,再起发起请求,跳转路由

      //获取之前的关键词
      const { keyword } = this.$route.query;
      // console.log(keyword)
      //重新跳转路由
      this.$router.push({
        path: "/search",
        query: { keyword },
      });
    },
    //清空关键词
    removeKeyword() {
      //获取原来的id name
      const { query } = this.$route;
      this.$router.push({
        path: "/search",
        query: {
          ...query,
          keyword: undefined,
        },
      });
      //清空搜索框里面的关键词
      this.$bus.$emit("clear-keyword");
    },
    //用于接收SearchSelector传递过来的品牌数据（品牌的id、品牌的名字）
    saveTrademark(trademark) {
      //解构赋值 读取品牌的编号 名字
      let { tmId, tmName } = trademark;
      //整理格式,存入searchParams中的trademark
      this.searchParams.trademark = `${tmId}:${tmName}`;
      ////携带着整理好的参数——searchParams，去见服务器
      this.search(true);
    },
    //移出品牌名
    removeTrademark() {
      this.searchParams.trademark = "";
      this.search(true);
    },
    //用于接收SearchSelector传递过来的属性数据
    saveProp(prop) {
      //收到的prop是这样的：2:16G:运行内存
      let result = this.searchParams.props.find((item) => item === prop);
      if (!result) {
        //存入searchParams中的props中
        this.searchParams.props.push(prop);
        //分发action
        this.search(true);
      }
    },
    //用于移除指定属性
    removeProp(index) {
      //删除指定属性
      this.searchParams.props.splice(index, 1);
      //搜索
      this.search(true);
    },
    //用于接收分页器传递过来的页码(pageNo)
    getPageNo(n) {
      this.searchParams.pageNo = n;
      this.search(false);
    },
    //点击排序按钮的回调
    changeOrder(type) {
      //获取之前的排序方式
      let [oldType, oldFlag] = this.searchParams.order.split(":");
      //判断点击的排序类型，是否和之前的类型一致
      if (type == oldType) {
        //和之前的排序类型一致
        let newFlag = oldFlag === "asc" ? "desc" : "asc";
        //维护参数
        this.searchParams.order = `${oldType}:${newFlag}`;
      } else {
        //和之前的排序类型不一致，type直接是最新的，flag直接使用desc
        this.searchParams.order = `${type}:desc`;
      }
      //发请求
      this.search(1); //对商品列表进行排序后，最好重置页码为1，不重置也可以，重置体验更好。
    },
  },
  filters: {
    fmtProp(prop) {
      return prop.split(":")[2] + "：" + prop.split(":")[1];
    },
  },
  watch: {
    //监视组件实例身上的$route
    $route: {
      immediate: true, //立即监视
      //每次跳转search路由时，只要携带的参数发生变化，
      //那么handler就会执行，获取到最新的路由信息，进一步的取到query参数
      async handler(nroute) {
        // console.log(value.query),
        let { query } = nroute;

        Object.assign(
          this.searchParams,
          {
            category1Id: undefined, //浏览器自动过滤undefined的参数
            category2Id: undefined,
            category3Id: undefined,
            categoryName: undefined,
            keyword: undefined,
          },
          query
        );
        this.search();
      },
    },
  },
};
</script>

<style lang="less" scoped>
.main {
  margin: 10px 0;

  .py-container {
    width: 1200px;
    margin: 0 auto;

    .bread {
      margin-bottom: 5px;
      overflow: hidden;

      .sui-breadcrumb {
        padding: 3px 15px;
        margin: 0;
        font-weight: 400;
        border-radius: 3px;
        float: left;

        li {
          display: inline-block;
          line-height: 18px;

          a {
            color: #666;
            text-decoration: none;

            &:hover {
              color: #4cb9fc;
            }
          }
        }
      }

      .sui-tag {
        margin-top: -5px;
        list-style: none;
        font-size: 0;
        line-height: 0;
        padding: 5px 0 0;
        margin-bottom: 18px;
        float: left;

        .with-x {
          font-size: 12px;
          margin: 0 5px 5px 0;
          display: inline-block;
          overflow: hidden;
          color: #000;
          background: #f7f7f7;
          padding: 0 7px;
          height: 20px;
          line-height: 20px;
          border: 1px solid #dedede;
          white-space: nowrap;
          transition: color 400ms;
          cursor: pointer;

          i {
            margin-left: 10px;
            cursor: pointer;
            font: 400 14px tahoma;
            display: inline-block;
            height: 100%;
            vertical-align: middle;
          }

          &:hover {
            color: #28a3ef;
          }
        }
      }
    }
    .empty {
      text-align: center;
      margin: 10px auto;

      h2 {
        color: #a7a7a7;
        margin: 20px auto;
      }
    }
    .details {
      margin-bottom: 5px;

      .sui-navbar {
        overflow: visible;
        margin-bottom: 0;

        .filter {
          min-height: 40px;
          padding-right: 20px;
          background: #fbfbfb;
          border: 1px solid #e2e2e2;
          padding-left: 0;
          border-radius: 0;
          box-shadow: 0 1px 4px rgba(0, 0, 0, 0.065);

          .sui-nav {
            position: relative;
            left: 0;
            display: block;
            float: left;
            margin: 0 10px 0 0;

            li {
              float: left;
              line-height: 18px;

              a {
                display: block;
                cursor: pointer;
                padding: 11px 15px;
                color: #777;
                text-decoration: none;
              }

              &.active {
                a {
                  background: #e1251b;
                  color: #fff;
                }
              }
            }
          }
        }
      }

      .goods-list {
        margin: 20px 0;

        ul {
          display: flex;
          flex-wrap: wrap;

          li {
            height: 100%;
            width: 20%;
            margin-top: 10px;
            line-height: 28px;

            .list-wrap {
              .p-img {
                padding-left: 15px;
                width: 215px;
                height: 255px;

                a {
                  color: #666;

                  img {
                    max-width: 100%;
                    height: auto;
                    vertical-align: middle;
                  }
                }
              }

              .price {
                padding-left: 15px;
                font-size: 18px;
                color: #c81623;

                strong {
                  font-weight: 700;

                  i {
                    margin-left: 5px;
                  }
                }
              }

              .attr {
                padding-left: 15px;
                width: 85%;
                overflow: hidden;
                margin-bottom: 8px;
                min-height: 38px;
                cursor: pointer;
                line-height: 1.8;
                display: -webkit-box;
                -webkit-box-orient: vertical;
                -webkit-line-clamp: 2;

                a {
                  color: #333;
                  text-decoration: none;
                }
              }

              .commit {
                padding-left: 15px;
                height: 22px;
                font-size: 13px;
                color: #a7a7a7;

                span {
                  font-weight: 700;
                  color: #646fb0;
                }
              }

              .operate {
                padding: 12px 15px;

                .sui-btn {
                  display: inline-block;
                  padding: 2px 14px;
                  box-sizing: border-box;
                  margin-bottom: 0;
                  font-size: 12px;
                  line-height: 18px;
                  text-align: center;
                  vertical-align: middle;
                  cursor: pointer;
                  border-radius: 0;
                  background-color: transparent;
                  margin-right: 15px;
                }

                .btn-bordered {
                  min-width: 85px;
                  background-color: transparent;
                  border: 1px solid #8c8c8c;
                  color: #8c8c8c;

                  &:hover {
                    border: 1px solid #666;
                    color: #fff !important;
                    background-color: #666;
                    text-decoration: none;
                  }
                }

                .btn-danger {
                  border: 1px solid #e1251b;
                  color: #e1251b;

                  &:hover {
                    border: 1px solid #e1251b;
                    background-color: #e1251b;
                    color: white !important;
                    text-decoration: none;
                  }
                }
              }
            }
          }
        }
      }

      .page {
        width: 733px;
        height: 66px;
        overflow: hidden;
        float: right;

        .sui-pagination {
          margin: 18px 0;

          ul {
            margin-left: 0;
            margin-bottom: 0;
            vertical-align: middle;
            width: 490px;
            float: left;

            li {
              line-height: 18px;
              display: inline-block;

              a {
                position: relative;
                float: left;
                line-height: 18px;
                text-decoration: none;
                background-color: #fff;
                border: 1px solid #e0e9ee;
                margin-left: -1px;
                font-size: 14px;
                padding: 9px 18px;
                color: #333;
              }

              &.active {
                a {
                  background-color: #fff;
                  color: #e1251b;
                  border-color: #fff;
                  cursor: default;
                }
              }

              &.prev {
                a {
                  background-color: #fafafa;
                }
              }

              &.disabled {
                a {
                  color: #999;
                  cursor: default;
                }
              }

              &.dotted {
                span {
                  margin-left: -1px;
                  position: relative;
                  float: left;
                  line-height: 18px;
                  text-decoration: none;
                  background-color: #fff;
                  font-size: 14px;
                  border: 0;
                  padding: 9px 18px;
                  color: #333;
                }
              }

              &.next {
                a {
                  background-color: #fafafa;
                }
              }
            }
          }

          div {
            color: #333;
            font-size: 14px;
            float: right;
            width: 241px;
          }
        }
      }
    }
  }
}
</style>
